/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:11:54,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:11:54,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:11:54,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:11:54,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:11:54,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:11:54,555 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:11:54,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:11:54,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:11:54,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:11:54,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:11:54,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:11:54,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:11:54,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:11:54,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:11:54,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:11:54,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:11:54,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:11:54,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:11:54,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:11:54,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:11:54,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:11:54,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:11:54,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:11:54,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 12:11:54,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 12:11:54,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 12:11:54,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 12:11:54,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 12:11:54,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 12:11:54,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:11:54,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:11:54,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:11:54,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:11:54,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:11:54,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:11:54,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:11:54,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:11:54,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:11:54,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:11:54,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:11:54,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-16 12:11:54,628 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:11:54,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:11:54,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:11:54,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:11:54,630 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:11:54,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:11:54,631 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:11:54,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:11:54,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:11:54,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:11:54,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:11:54,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:11:54,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:11:54,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:11:54,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:11:54,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:11:54,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:11:54,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:11:54,633 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:11:54,633 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:11:54,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:11:54,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:11:54,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:11:54,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:11:54,635 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:11:54,635 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:11:54,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:11:54,635 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:11:54,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:11:54,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:11:54,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:11:54,984 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:11:54,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:11:54,986 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:11:54,986 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-16 12:11:55,064 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df77b80b6/d39d36fbaf6b4ca7bcbbbdc2da9ca28a/FLAG455702d0d [2020-10-16 12:11:55,716 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:11:55,717 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-10-16 12:11:55,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df77b80b6/d39d36fbaf6b4ca7bcbbbdc2da9ca28a/FLAG455702d0d [2020-10-16 12:11:55,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df77b80b6/d39d36fbaf6b4ca7bcbbbdc2da9ca28a [2020-10-16 12:11:55,920 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:11:55,922 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:11:55,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:11:55,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:11:55,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:11:55,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:11:55" (1/1) ... [2020-10-16 12:11:55,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cee89f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:55, skipping insertion in model container [2020-10-16 12:11:55,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:11:55" (1/1) ... [2020-10-16 12:11:55,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:11:55,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:11:56,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:11:56,404 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:11:56,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:11:56,637 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:11:56,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56 WrapperNode [2020-10-16 12:11:56,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:11:56,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:11:56,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:11:56,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:11:56,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,668 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:11:56,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:11:56,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:11:56,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:11:56,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... [2020-10-16 12:11:56,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:11:56,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:11:56,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:11:56,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:11:56,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:11:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:11:56,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 12:11:56,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:11:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:11:56,806 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 12:11:56,806 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 12:11:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 12:11:56,807 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 12:11:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 12:11:56,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:11:56,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:11:56,813 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:11:57,110 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:11:57,111 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-16 12:11:57,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:11:57 BoogieIcfgContainer [2020-10-16 12:11:57,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:11:57,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:11:57,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:11:57,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:11:57,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:11:55" (1/3) ... [2020-10-16 12:11:57,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e29fff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:11:57, skipping insertion in model container [2020-10-16 12:11:57,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:11:56" (2/3) ... [2020-10-16 12:11:57,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e29fff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:11:57, skipping insertion in model container [2020-10-16 12:11:57,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:11:57" (3/3) ... [2020-10-16 12:11:57,127 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-10-16 12:11:57,143 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:11:57,143 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:11:57,152 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-16 12:11:57,154 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:11:57,201 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,202 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,202 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,203 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,204 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,205 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,205 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,205 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,206 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,207 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,211 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,212 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,212 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,212 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,218 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,218 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,219 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,219 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:11:57,221 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:11:57,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-16 12:11:57,257 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:11:57,257 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:11:57,257 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:11:57,257 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 12:11:57,258 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:11:57,258 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:11:57,258 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:11:57,258 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:11:57,271 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:11:57,272 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 12:11:57,275 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 55 transitions, 120 flow [2020-10-16 12:11:57,277 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 60 places, 55 transitions, 120 flow [2020-10-16 12:11:57,321 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-16 12:11:57,321 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:11:57,326 INFO L80 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 53 events. 2/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2020-10-16 12:11:57,329 INFO L117 LiptonReduction]: Number of co-enabled transitions 672 [2020-10-16 12:11:58,553 INFO L132 LiptonReduction]: Checked pairs total: 1233 [2020-10-16 12:11:58,553 INFO L134 LiptonReduction]: Total number of compositions: 49 [2020-10-16 12:11:58,561 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2020-10-16 12:11:58,576 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 12:11:58,578 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 12:11:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:11:58,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:58,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:11:58,587 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:58,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1785955775, now seen corresponding path program 1 times [2020-10-16 12:11:58,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:58,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148143148] [2020-10-16 12:11:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:58,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:58,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148143148] [2020-10-16 12:11:58,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:58,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 12:11:58,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367895138] [2020-10-16 12:11:58,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:58,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:58,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:58,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:58,838 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 12:11:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:58,877 INFO L93 Difference]: Finished difference Result 72 states and 154 transitions. [2020-10-16 12:11:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:58,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 12:11:58,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:58,892 INFO L225 Difference]: With dead ends: 72 [2020-10-16 12:11:58,892 INFO L226 Difference]: Without dead ends: 56 [2020-10-16 12:11:58,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-16 12:11:58,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-16 12:11:58,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-16 12:11:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 114 transitions. [2020-10-16 12:11:58,942 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 114 transitions. Word has length 6 [2020-10-16 12:11:58,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:58,942 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 114 transitions. [2020-10-16 12:11:58,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:58,943 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 114 transitions. [2020-10-16 12:11:58,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-16 12:11:58,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:58,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:58,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:11:58,944 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:58,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:58,945 INFO L82 PathProgramCache]: Analyzing trace with hash -469946389, now seen corresponding path program 1 times [2020-10-16 12:11:58,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:58,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378712098] [2020-10-16 12:11:58,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:59,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:59,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:59,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378712098] [2020-10-16 12:11:59,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:59,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:59,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837357340] [2020-10-16 12:11:59,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:11:59,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:59,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:11:59,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:11:59,139 INFO L87 Difference]: Start difference. First operand 56 states and 114 transitions. Second operand 4 states. [2020-10-16 12:11:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:59,171 INFO L93 Difference]: Finished difference Result 56 states and 99 transitions. [2020-10-16 12:11:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 12:11:59,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-16 12:11:59,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:59,173 INFO L225 Difference]: With dead ends: 56 [2020-10-16 12:11:59,173 INFO L226 Difference]: Without dead ends: 40 [2020-10-16 12:11:59,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:59,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2020-10-16 12:11:59,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-10-16 12:11:59,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-16 12:11:59,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 66 transitions. [2020-10-16 12:11:59,181 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 66 transitions. Word has length 7 [2020-10-16 12:11:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:59,181 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 66 transitions. [2020-10-16 12:11:59,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:11:59,182 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 66 transitions. [2020-10-16 12:11:59,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-16 12:11:59,182 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:59,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:59,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:11:59,183 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:59,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:59,184 INFO L82 PathProgramCache]: Analyzing trace with hash -658099301, now seen corresponding path program 1 times [2020-10-16 12:11:59,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:59,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218909666] [2020-10-16 12:11:59,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:59,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:59,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218909666] [2020-10-16 12:11:59,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:59,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:11:59,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213859130] [2020-10-16 12:11:59,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 12:11:59,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:59,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 12:11:59,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:59,269 INFO L87 Difference]: Start difference. First operand 40 states and 66 transitions. Second operand 5 states. [2020-10-16 12:11:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:59,306 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2020-10-16 12:11:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 12:11:59,307 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-10-16 12:11:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:59,308 INFO L225 Difference]: With dead ends: 35 [2020-10-16 12:11:59,308 INFO L226 Difference]: Without dead ends: 28 [2020-10-16 12:11:59,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 12:11:59,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-16 12:11:59,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-16 12:11:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-16 12:11:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2020-10-16 12:11:59,313 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 42 transitions. Word has length 9 [2020-10-16 12:11:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:59,313 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 42 transitions. [2020-10-16 12:11:59,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 12:11:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2020-10-16 12:11:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:11:59,314 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:59,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:59,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:11:59,315 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash 967414389, now seen corresponding path program 1 times [2020-10-16 12:11:59,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:59,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361939559] [2020-10-16 12:11:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:59,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:59,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361939559] [2020-10-16 12:11:59,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:59,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:11:59,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298424337] [2020-10-16 12:11:59,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:11:59,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:59,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:11:59,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:59,356 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 3 states. [2020-10-16 12:11:59,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:59,364 INFO L93 Difference]: Finished difference Result 35 states and 50 transitions. [2020-10-16 12:11:59,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:11:59,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-16 12:11:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:59,365 INFO L225 Difference]: With dead ends: 35 [2020-10-16 12:11:59,365 INFO L226 Difference]: Without dead ends: 16 [2020-10-16 12:11:59,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:11:59,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-16 12:11:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-16 12:11:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-16 12:11:59,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2020-10-16 12:11:59,369 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2020-10-16 12:11:59,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:59,369 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2020-10-16 12:11:59,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:11:59,370 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-10-16 12:11:59,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-16 12:11:59,370 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:11:59,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:11:59,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:11:59,371 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:11:59,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:11:59,371 INFO L82 PathProgramCache]: Analyzing trace with hash -129480839, now seen corresponding path program 2 times [2020-10-16 12:11:59,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:11:59,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544299312] [2020-10-16 12:11:59,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:11:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:11:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:11:59,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544299312] [2020-10-16 12:11:59,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:11:59,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:11:59,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888827343] [2020-10-16 12:11:59,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:11:59,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:11:59,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:11:59,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:11:59,456 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2020-10-16 12:11:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:11:59,471 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-10-16 12:11:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:11:59,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-16 12:11:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:11:59,472 INFO L225 Difference]: With dead ends: 15 [2020-10-16 12:11:59,472 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:11:59,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-16 12:11:59,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:11:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:11:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:11:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:11:59,473 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-16 12:11:59,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:11:59,474 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:11:59,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:11:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:11:59,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:11:59,475 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:11:59,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:11:59 BasicIcfg [2020-10-16 12:11:59,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:11:59,488 INFO L168 Benchmark]: Toolchain (without parser) took 3564.81 ms. Allocated memory was 145.8 MB in the beginning and 249.6 MB in the end (delta: 103.8 MB). Free memory was 100.6 MB in the beginning and 177.7 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,495 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 715.21 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 161.2 MB in the end (delta: -60.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,500 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.77 ms. Allocated memory is still 202.4 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,500 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,501 INFO L168 Benchmark]: RCFGBuilder took 390.38 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 137.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,503 INFO L168 Benchmark]: TraceAbstraction took 2367.57 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 137.2 MB in the beginning and 177.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:11:59,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 715.21 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 161.2 MB in the end (delta: -60.8 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.77 ms. Allocated memory is still 202.4 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 390.38 ms. Allocated memory is still 202.4 MB. Free memory was 157.1 MB in the beginning and 137.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2367.57 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 137.2 MB in the beginning and 177.7 MB in the end (delta: -40.5 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 365 VarBasedMoverChecksPositive, 21 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 25 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 60 PlacesBefore, 22 PlacesAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 672 CoEnabledTransitionPairs, 5 FixpointIterations, 12 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 49 TotalNumberOfCompositions, 1233 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 64 SDtfs, 38 SDslu, 64 SDs, 0 SdLazy, 45 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 891 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...